Simulation of the Loading Device of the Test Bench of Mechanical Transmissions

A study of the loading device of a mechanical transmissions test bench is presented. A mathematical description of an autonomous AC electric power system in phase coordinates has been developed and, using the Park — Gorev transformation, the phase quantities of stators and rotors have been converted into the d–q system. A justification is given for the possibility of lowering the order of the mathematical model of the stand in order to make it more suitable for the synthesis of a control system. Comparative modeling tested the hypothesis of reducing the order of the mathematical description of the loading device. The results of numerical simulation of the electromagnetic subsystem of the stand in various test modes of mechanical transmissions are presented. An analysis of the resulting processes for generating a cyclogram of the transmission loading moment is presented, on the basis of which it is recommended to develop a control system for the stand.